How do infrared transmitters work?

Infrared transmitters operate by modulating sound into an electrical signal and transmitting that information through light beams. This technology is effective because it utilizes infrared light, which is invisible to the human eye, to convey audio information from the source to the receiver. The modulation process involves converting the audio into a digital signal, which can then be used to control the intensity and duration of the light pulse emitted by the infrared transmitter.

The infrared light travels through the air to an infrared receiver, which picks up the light signal and converts it back into an audio signal for amplification through hearing aids or other assistive listening devices. This method is particularly beneficial in environments where background noise may interfere with traditional sound transmission methods, as it enables a clearer signal directly to the user's device without interference.

Other methods mentioned involve different modes of transmission or sound processing, making them less appropriate for the specific technology of infrared transmitters.